Rail joint



Dec. 16, 1941. I

C. DEL BIANCO RAIL JOINT Filed Dec. 27. 1939 Cesare. De.\ BlQflCo YEN T'o K,

Patented Dec. 16, 1941 Cesare Del Bianco, Bucine, Italy Application December 27, 1939, Serial No. 311,124 In Italy January 2, 1939 3 Claims.

The invention relates to a device to be applied to railroad and tramway rails, preferably to the bases of the said rails, in register with the joints, which device serves the purpose of eliminating the knocking or hammering due to the passage of the axles of railway vehicles.

Itis essentially based on the fact of the two short contiguous rail-sections, constituting the joint, being compelled to bend simultaneously and in conjunction, under the weight of the vehicle axles as if the rails were welded together. More precisely, the invention concerns a device which is applied to the two contiguous rails and which is so constituted and shaped that when one of the rails sinks, owing to the weight of the axles, it causes the sinking of the adjacent rail as well, so as to compel both the rails to sink simultaneously to the same extent, thus preventing any practical difference of level between one rail and the other, so that the vehicle wheels encounter no prominences at the joints, nor any difference in level while running which prominences are the cause of the well-known knocking or hammering.

The device, which, as stated, connects the two rails as if they were welded together, does, however, allow of the dilatation and of the contraction of the said rails, due to the variations of the surrounding temperature.

The invention will be best understood on following the specification and the accompanying drawing, which shows a practical example of the carrying out of the said invention.

In this drawing Fig. 1 shows in a front view a joint or juncture of two contiguous rails, according to one of the various types in use, provided with the device concerned;

Fig. 2 shows a section taken on line A-B of Fig. 1; and

Fig. 3 shows in a plan view, the development of a metal plate cut out with a view to its being bent over in order to form the device concerned.

According to the example delineated, the device consists of a plate a of suitable thickness and material, conveniently cut out. The plate is provided with two plane recesses 12-12, or such as are slightly inclined. The extremities b of the wings c are bevelled in order to further the welding, as will be seen hereinafter.

The four wing-shaped portions of the plate, are squarely bent upwards along the sections d so that the four bevellings b are turned towards the inner side of the bend. The whole of this plate is bent back towards the centre of same, and on the side opposite the flexures of the bands or Wings 0.

Thus, the central portion a, provided with two prominences a presents, when flexed, on both sides, at the upper part along a sufiicient section the wings 0 connected and normal to one-half of the portion a (see Fig. 2).

A device is thus obtained, which when seen from the front has the form of a V whose concave portions b,'viz. the upper extremities of the portion a, bear against the underpart of the foot of the rails (see Fig. 2) with the interposition, if so desired, of the normal base-plate. The bevelled portions b of the bands 0 bear on either side against the edges of the rail-foot, but in such a manner that the bevelled portions b form a trough with the extreme edges of the foot or sole, thus leaving a sufiicient angular space between I) and the edge of the said sole. 7

These two spaces are filled up with autogenous soldering or the like, such as is suited to the purpose in view in such a manner that the said soldering may attach the wings c to the rail-Foot, so as to constitute an undivided Whole together with the rail itself. However, this attachment might also be efiected in some other, even a mechanical, manner.

Thus, the two wings c fixed to the foot or sole of one rail will be found to be solidly joined to the other two wings c aifixed to the foot of the contiguous rail by means of the flexed part a. This flexed parta while connecting the heads of the rails together, still allows of all the normal variations in the length of the said rails due to the influence of the temperature.

The plate a may, instead of being bent back along the rib a, also be divided into two distinct parts, united together, at the said point, by means of soldering, nailing, forging, hingeing, grooving, or in any other manner.

The means for the attachment of the rails to the joint may remain those already normally in use, and be suitably adapted.

It is understood that the drawing constitutes but a schematic form or example, given solely byway of a practical showing of the invention, it being possible for the said invention to be varied as to the forms and arrangements thereof without, however, departing from the scope of the concept underlying the said invention.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is:

1. In a rail joint, a joining member formed from a rectangular blank including a wing at each 2. In a rail joint, a joining member as claimed of its corners, said wings being spaced apart, the in claim 1 in which said blank has laterally widspace between two wings on one end being ened portions between said ends.

adapted to receive the base of a rail, the space be- 3. In a rail joint, a joining member as claimed tween the two wings on the opposite end being 5 in claim 1 in which said wings have outer edges also adapted to receive the base of a rail, said parallel to the ends of said blanks, said outer blank being bent in half along an axis half way edges being bevelled so as to form a trough with between said ends, each wing being bent outthe rail for welding purposes. wardly substantially at right angles to said axis s so that the two pairs of adjacent wings form a 10 CESARE DEL BIANCO.

cradle for the base of a rail. 

